单项选择题
A.run B.ran C.running D.runing
（）of mast paint shall we put on?A. What coatsB. How muc...
单项选择题（）of mast paint shall we put on?
A. What coats B. How much coat C. How many coats D. Where coats
Finally, a wire brush should be used on all bare （）to r...
单项选择题Finally, a wire brush should be used on all bare （）to remove the last of the scale.
A.metal B.wood C.cement D.all the above
The （）plates should be scraped and brushed to bare meta...
单项选择题The （）plates should be scraped and brushed to bare metal.
A.rusty B.tidy C.dirty D.cleaned
